Home / 98,009.38-135,246.71-57,715.36

Finding the Fourth Proportional to 98,009.38, 135,246.71 and 57,715.36

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Solution

The fourth proportional to 98,009.38, 135,246.71 and 57,715.36 is: 79,643.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,009.38 : 135,246.71 = 57,715.36 : x
  2. Step 2: Convert to fraction form
    98,009.38/135,246.71 = 57,715.36/x
  3. Step 3: Cross multiply
    98,009.38x = 135,246.71 × 57,715.36
  4. Step 4: Simplify right side
    98,009.38x = 7,805,812,362.64
  5. Step 5: Solve for x
    x = 7,805,812,362.64/98,009.38
  6. Step 6: Final answer
    x = 79,643.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.